Improvement in turning-lathes



/l wmf N, PETERS. PHOTO-LI naar .sans

HARVEY LOOKE, OF GRAND'RAPIDS, iiZI'IC-lllljGr-AN;l

Leners, Patent No. 107,513, daad september 2o,v 1870.

IMPROVEMENT' 1N TRNrNG-LATHES.

The Schedule referred to inA these Letters Patent and making part of the same.

To all whom ttlmay concern.-

'Be it known that I, HARVEY LooKE, ot Grand Rapids, in the county of KentV and State of Michigan, have invented a new and useful Improvement -in Turning-Lathes; and l do hereby declare the following to be a full, -clear, and exact description thereof, sutiicient'to enable any one skilled in the art to which my invention appertains to make, construct, and use the same, reference being had to the Iaccompanying drawing forming part ot this specification.

Figure 1 is a. general side' view of myiu'vention.

Figure 2 is a top view ot' the same. showing the arrangementot the feed-spout, arms, and cutters, hereinafter described.`

Figure 3 is an end view of my invention, designed to show the arrangement oftiiction-pulleys and gearing which operate the machines.

Figure 4 shows the arrangement of the camwheel M, levers 'm and n', and levers aand n'. g

Figure 5 is a portion of one of the spindles, showing the device for oiling vthe bearing'whenattached ready for use.

Figure 6 is likewise-a portion of the same spindle, with a sectional view of the oiling device.

Figure 7 is one of the forks attached tothe arms K or K.

Figure S is another view of the same fork.

Figure 9 is a'view of the cam-wheel M', showing the construction .of the groove a and the operation of the lever I2 P2,

This invention relates to that class of devices known as turning-lathes; andl It consists in the combination and arrangement of certain parts, all of which will hereinafter be more.

fully set forth'. v

A represents the frame-work of the machine, constructed of iron or any suitable material.

S is a horizontal shaft, provided with the band or belt-pulleys B and B P. The power used in operating the machine is applied to the pulley B.

The band-pulley P is provided with two bands or belts, one atveither end, as shown iniig. 1. One'of these belts passes over the pulley l, and thus revolves the turning-spindle t, andthe other beltis crossed and passes over the pulley .b, thus operating the turningspindle t'.

The pulley Il is in like manner provided with belts operatingthe turning-spindles a: and x'.

The shaft S is provided with thesmall friction-pulley F, which is pressed against and operates the large friction-pulley 1*".

The pulley F' and cog-'wheel or pinion g are fitted upon the metallic collar r, the pinion immovably and the pulley F'v so as to move with it when the machine is in operation.

The pulley F', a pin aftixedin the lower end of' the lever hf. The pulley F is provided with a f1" -'on`blck,'13 as shown in tig. I3,. adj usted by means of a set-screw. This friction-block is designed to beso adjusted as to press upon the collar with sufficient force to canse the collar-4', pulley F', and pinion y to nuove together when the machine is in operation, andat thesame time to allow the pulley F' to slip upon the' collar fr whenever any portion of the .machinery operated by this pulley meets fwith.' an obstruction,- therebyvpreventing breakage or injury to the morcdelicate por tions ot' the machine.

In tig. 1 L and L' represent two levers, both mov ing or turning upon the pivot 6 as a. fulcrum.

The upper end of the lever L is attached to the rod y R,and also to the turning-spindle fr.

The lever L' is in like manner attached to the rod R' and the turning-spindle y Tile lower end of each of .these levers is provided with a pin jttinginto the groove in the cam-wheel W, as shown `in lig. 1.

The groove is so formed that, asthe cam-wheel revolves, the l'evei's L and L are alternately pressed out- -ward and drawn back, and, turning as they do upon the pivot 6 as a fnlcrum, the upper ends ot' these lcvers move the spindles a: and x', and rods It and R'.

backward and forward alternately. The groove is soA formed that each lever is moved backward and forward twice to each revolution of the wheel W.y

N and N are two levers, attached to the rods d and d' by means ot' the springs D and D.

These levers turn upon the pivot 7 as a. fulcrum, and are operated lby means ot the cam-wheelW in the same manner as the levers L and Lare operated by the cam-wheel W, excepting the groove in the cam-wheel W' is a single cam, moving each of the levers N and N' backward and forward only once at a single revolution ot the cam-wheel.

M is a carnwhcel attached to the shaft 2, and lre'-4 'volves with it. y

This cam-wheel is provided with the groove 10, as shown in fig. 4..

mis a'crooked or bent lever, .one end of which isv provided with a pin Vdesigned to move in the groove v l0. l The other end is attached tothe lever or bar n' by means ot' a pivot or movable rivet.

. This lever turnsupon the pivot or rod passing through the projections 9 9', as Vshown .in tig. 1, and i the elbow f of the leven The bar a' is attachedto the perpendicular cutter 3. The cutter 3 is attached toa block orholdcr, which pinion g, andA collar r, all turn upony l moves upward and downward in slides or grooves provided for that purpose.

The lever m', bar n, and cutter 3', are constructed andari'anged in the same manner, and together they are so arranged that the cutters 3 and 3 are'alternately raised and lowered as the cam-wheel M revolves. v K

In iig. 1, P2 P2 is a lever, turning upon a fulcriun near its center, and near the center ot' a horizontal bar, theeud of which is shown in the figure (l) by e.

The lower end of this lever is provided with a pin, which engages with the groove ain the .cam-wheel M', as shown i'u lig. 9.

' The upper end of this lever is attached to the part J by means of a bolt. This bolt passes through Va slotin the lower part or arm of the part J, and moves freely in't-he same. The upper end of the lever may be slotted, if desired.

The object in having the arm ofthe part J slotted, as described, is to furnish a ready means of regulating the oscillations of the arms K andK, by -raising or lowering the `blt passing through this slot, and attaching the arm ofthe part J to the lever Pil".

The groove a in the cam-wheel M' is so constructed that, as the wheel revolves, the lower end of this lever is moved backward andforward, thus. giving an oscillating motion to the upper end, and also to the part J, to which it is attached. I

K and K are arms, attached tothe shaft O insuch a manner as to move with it and have the. same oscillating motion as the part J, already described.

The arms K and K are each regulated as to the length ofstrokeoroscillation by ineans of two gauges, one on either side of the arm, adjusted by means of thc screws p and p1, as shownin iig.3..

The arms K and K' are also each provided with a fork, one of which forks is shown in the drawing by figs. 7 and 8. These forks arebent at their lower ends, as shown in fig. 7, and the crooked portion of each provided with aprong, as shown in tig. 8.

The fork-which'- is attached to the arm K turns upon a pivot at its upper end, in a direction opposite from the oscillations of the arms. It is also 'provided'with a spring, which brings it back to its proper place after it has been pressed out by the rod R or R', as hereinafter described.

The gouge-cutters 4c c' are each held in place by means ot' a holder, so constructed as to clasp the rod el, as shown iu fig. 1.

This holder has an arm, 82, extending upward and resting upon the pattern-bar-4.

Tile springs D and D are so arra-nged with reference to the rods d and el asto turnfthe rods inwardly, thereby pressing thc arms 82 82 upon the pattern-bars 4 and 4f. The holders are cach adjusted by means of a set-screw.

The :feed-spout is constructed of two pieces of wood or metal, shown in iig. l by U U'..

These pieces are groov'ed nearly perpendicular] y and entirely through them.V They extend downward in the direction ot' the pieces y y, and their lower ends are at such a distance therefrom that one block or piece of stock may be removed at a time bythe forks on the arms K and K', as hereinafter described.

In Iig; 1, h represents a bent lever, turning upon the pivots, and attached, by means ot' the har i, to"

' the lever 7c.

The lever h" moves upon the pivot-s' as shown-in g.' 3.

The friction-pulley F' being attached to the lower end of the lever h', as vhereinbetore described, by operating the lever 7l the pulley F' is. raised or lowered, and is thus connected with or disconnected from the friction-pulley F at pleasure.

.The part J is constructed of two pieces, so as to as a fulcruui,

clasp the shaft O, as shown in tig. 3. It is adj usted by means of ascrew', and should be so set as to move thcA armsK and K with suiiicient force to perform the work for 'which they are designed, and at the same time so as to slip on the shaft O whenever the arms vor either of them meets with an obstruction.

Tile parts 8 S and 8l 8, through which the shafts ll and d pass, and also the parts 'i t', through which the "shaft O passes, are each provided with a device similar to theldevice used in connection with the pulley F and collar r, already described and shown in fig. 3 b 13.

'ylhe device as applied to the shafts d and al' and shaft O isfor the purpose vof taking up the wear ot' the parts, and always giving a steady, even movement.'

Fig. 5 shows a portion of one of the turning-spindles, with the device' for oiling the bearing, attached as it appears when ready for use.

Fig. 6' represents a portion of the same spindle with a`sectional view ot' the oiling device. The de- .vice as shown in fig. 6 consists ot' a block of metal -or any suitable material, providedv with the cavity 1 and 1, extending through the same, and opening at its lower cnd directly against the center of the end Aor bearing of the turning-spindle., The oil is 'placed in the upper end ot' this cavity, and passes down against the center of the bearing of the spindle, and, when the spindle revolves, the oil is carried outwardly and around the entire bearing, thus keeping it properly oiled and in good working order. The spindles x and x' are each provided with a similar device.

rlhe spindles t and t' areeach provided with a spur and dog at their inner ends, to hold the stock while being operated upon, and the spindles :i: and :v'nre also provided cach with a spur.

In using my invention, the stock is first sawed into blocks of'the required size and length, and placed in the feed-spout U U', the ends ot' vblocks being held in` the grooves above described. The stock passes downward until the lower block rests upon the bed-piece y y, and is entirely below the lower end of the feedspoilt.

The machine being put in operation, the arms' K and K' pass over the bed-piece y y, carrying upon their forks thc lower block, and placing it between the spurred ends of the spindles v andt.

The spindle a; and rod R are now pressed forward by means of the lever L, the spur 4of the spindle :t penetrating one end of the block, and the spur and .dog of the spindle t the other end. The rod 1t at the same time presses back the fork on the arm K, thus leaving the block upon the spindles ready to be turned,

'.lhe gouge-cutter c n ow quickly passes over the stock as it is revolved upon the spindles, cutting away the corners, and leaving it nearly round.

After the cutter c has passed over the block as described, the perpendicularor finishing-cutter 3 is moved upward by means of the lcverm until it is ly cuts it into the desired shape. The forks have in the mean time carried'a block upon their crooked prongs to the opposite spindles, to be operated upon The arms now return with another block for the spindles a: and t. The spindle x and rod R are withdrawn. The finished article drops into a spout providedv for that purpose, and passes oli, and the new block is inserted in its place. i

land pass ot in .thespout, as

brought in contact with the rounded stock, and quick-v iu the manner describedin reference tothe first block.`

'lhe blocks are thus placed upon the spindles on Having thus described my invention,

What l claim to have invented, and desire to secure by Letters Patent, is- 1. 'lhe construction and arrangement of the grooved feed-spout U U', arms K and K', provided with the` forksand springs, when usedand operated substantially as above set forth.

2. The arrangement of thearmsK and. K', shaft O, gauges p p, part J, and lever P2, all constructed aud'operated as herein described.

.3. The spindles v and 1v', rods R and R,'in combinatiu with the forks on the arm K, when constructed,

arranged, and operated as described. p

4. The springs D and D',in combination with the rods d and d', for- .the purpose of holding the arms 8 Supon the pattern-bars 4 and 4', all arranged as described.

.5. f lhefconstructon and arrangement of the levers m and m', n andl n', in 'combination with the caniwheel M, whenused for the purpose-'of raising and unto subscribed my name this 19th day of May, A. D. 1870. A l

. HARVEY LOCKE.

Witnesses:

` OHAS. O. SrMoNDs,

EDWARD TAGGART.

' In testimony that I claim the'above, I-have here- 

